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Michael Markels of Springfield, Virginia, has been calculating how to
increase seafood production (WO 98/26653). Sixty per cent of all ocean life
lives in just 2 per cent of the ocean, Markels says, so he reckons that if
barren areas along the Atlantic and Pacific coasts of the US were treated with
an iron chelate fertiliser, it could stimulate plankton reproduction, helping
feed small fish which would then be eaten by large tuna and swordfish. This
could increase food productivity by a factor of 30, he calculates, to match that
of the fertile sea off Peru.